NCT04019600

Brief Summary

Methamphetamine is misuse if classified as a "likely" risk factor for pulmonary arterial hypertension (PAH). Nevertheless the actual prevalence of and a screening strategy for PAH in methamphetamine users have not been established. In this study, the prevalence of PAH will be investigated and its independent risk factors among methamphetamine users will be identified.

Trial Health

33
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Trial recruitment is currently suspended
Enrollment
200

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Dec 2019

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
suspended

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 11, 2019

Completed
4 days until next milestone

First Posted

Study publicly available on registry

July 15, 2019

Completed
5 months until next milestone

Study Start

First participant enrolled

December 23, 2019

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 22, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 22, 2022

Completed
Last Updated

August 10, 2021

Status Verified

August 1, 2021

Enrollment Period

3 years

First QC Date

July 11, 2019

Last Update Submit

August 2, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • Diagnosis of PAH in methamphetamine users

    Diagnosis and subtypes, as well as prevalence of PAH in methamphetamine users

    3 years

Secondary Outcomes (1)

  • Risk factors of PAH in methamphetamine users

    3 years

Interventions

Demographic data and health risk factors will be collected on day of screening, together with the above tests. Right heart catheterization will be separately arranged in patients with a high echocardiographic probability of PAH. For those with a low-intermediate echocardiographic probability, screening will be repeated within 1 year to ensure true negativity of the original scan.

Also known as: 12-lead electrocardiogram, Serum sampling for brain natriuretic peptide and other biomarkers, 6-minute walking test

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Participants with a history of methamphetamine use followed-up in the participating substance abuse clinic will be identified via the computerized database of the clinical management system.

You may qualify if:

  • \>= 18 years at enrollment
  • report of methamphetamine use in the last 2 years
  • diagnosed as amphetamine dependent according to the Diagnostic and Statistical Manual of Mental Disorders (the 5th edition) (DSM-V)(13)
  • voluntarily agree to participate by providing written informed consent

You may not qualify if:

  • failed or refused to provide written informed consent
  • Reference:
  • \. Battle DE. Diagnostic and Statistical Manual of Mental Disorders (DSM). Codas 2013;25(2):191-2.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Queen Mary Hospital

Hong Kong, Hong Kong

Location

MeSH Terms

Conditions

Hypertension, Pulmonary

Interventions

Natriuretic Peptide, Brain

Condition Hierarchy (Ancestors)

Lung DiseasesRespiratory Tract DiseasesHypertensionVascular DiseasesCardiovascular Diseases

Intervention Hierarchy (Ancestors)

Natriuretic PeptidesPeptide HormonesHormonesHormones, Hormone Substitutes, and Hormone AntagonistsPeptidesAmino Acids, Peptides, and ProteinsNerve Tissue ProteinsProteins

Study Officials

  • Siu-Han JoJo Hai, MBBS

    Cardiac Division, the University of Hong Kong

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
CROSS SECTIONAL
Target Duration
1 Year
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical Professor

Study Record Dates

First Submitted

July 11, 2019

First Posted

July 15, 2019

Study Start

December 23, 2019

Primary Completion

December 22, 2022

Study Completion

December 22, 2022

Last Updated

August 10, 2021

Record last verified: 2021-08

Locations